Question

A ball is thrown vertically upward from the top of a 100 foot tower, with an initial velocity of 10 ft/sec. Its position function is s(t) = –16t2 + 10t + 100. What is its velocity in ft/sec when t = 2 seconds?

Answer 1

find v'(t)
and then evaluate v'(t) at t=2

Answer 2

So v'(t) = -32t +10

Answer 3

ooops sorry should have said s'(t)

Answer 4

but yeah v(t)=s'(t) which is the velocity function

Answer 5

but yeah v(t)=-32t+10

Answer 6

Either way.. I see what I did wrong. I did the same thing but read 10 as 100. Made a completely different answer. Thank you nonetheless

Answer 7

np